Clinical and Experimental Gastroenterology最新文献

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Bowel Habits, Obesity, Intestinal Microbiota and Their Influence on Hemorrhoidal Disease: a Mendelian Randomization Study. 排便习惯、肥胖、肠道微生物群及其对痔疮疾病的影响:孟德尔随机研究。
IF 2.4
Clinical and Experimental Gastroenterology Pub Date : 2024-05-10 eCollection Date: 2024-01-01 DOI: 10.2147/CEG.S450807
Miaozhi Yu, Yuan Shang, Lingling Han, Xi Yu
{"title":"Bowel Habits, Obesity, Intestinal Microbiota and Their Influence on Hemorrhoidal Disease: a Mendelian Randomization Study.","authors":"Miaozhi Yu, Yuan Shang, Lingling Han, Xi Yu","doi":"10.2147/CEG.S450807","DOIUrl":"10.2147/CEG.S450807","url":null,"abstract":"<p><strong>Purpose: </strong>Hemorrhoids (HEM) are the most common perianal disease, but current observational studies have yielded inconsistent results in investigating the risk factors. Our further exploration of the risk factors will help prevent the disease.</p><p><strong>Patients and methods: </strong>We conducted a two-sample bidirectional Mendelian randomization (MR) analysis using publicly available genome-wide association studies (GWAS) statistics from multiple consortia. The inverse-variance weighted (IVW) method was used for the primary analysis. We applied four complementary methods, including weighted median, weighted mode, MR-Egger regression, and Cochrane's Q value, to detect and correct the effects of horizontal pleiotropy.</p><p><strong>Results: </strong>Genetically determined constipation (OR = 0.97, 95% CI: 0.91-1.03, P = 0.28) and diarrhea (OR = 1.00, 95% CI: 0.99-1.01, P = 0.90) did not have a causal effect on HEM but stool frequency (OR = 1.28, 95% CI: 1.05-1.55, P = 0.01), waist-to-hip ratio adjusted for BMI (OR = 1.11, 95% CI: 1.06-1.64, P = 1.59×10-5), and order Burkholderiales (OR = 1.09, 95% CI = 1.04-1.14, p = 1.63×10-4) had a causal effect on. Furthermore, we found a significant causal effect of constipation on HEM in the reverse MR analysis (OR = 1.21, 95% CI: 1.13-1.28, P = 3.72×10-9). The results of MR-Egger regression, Weighted Median, and Weighted Mode methods were consistent with those of the IVW method. Horizontal pleiotropy was unlikely to distort the causal estimates, as indicated by the sensitivity analysis.</p><p><strong>Conclusion: </strong>Our MR analysis reveals a causal association between stool frequency and waist-to-hip ratio with HEM, despite variations in results reported by observational studies. Unexpectedly, we found a relationship between the order Burkholderiales in the gut flora and HEM, although the mechanism is unclear.</p>","PeriodicalId":10208,"journal":{"name":"Clinical and Experimental Gastroenterology","volume":null,"pages":null},"PeriodicalIF":2.4,"publicationDate":"2024-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11093121/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140921480","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Should an Incidental Meckel Diverticulum Be Resected? A Systematic Review. 偶发梅克尔憩室应否切除?系统回顾。
IF 2.4
Clinical and Experimental Gastroenterology Pub Date : 2024-05-07 eCollection Date: 2024-01-01 DOI: 10.2147/CEG.S460053
Vipul D Yagnik, Pankaj Garg, Sushil Dawka
{"title":"Should an Incidental Meckel Diverticulum Be Resected? A Systematic Review.","authors":"Vipul D Yagnik, Pankaj Garg, Sushil Dawka","doi":"10.2147/CEG.S460053","DOIUrl":"10.2147/CEG.S460053","url":null,"abstract":"<p><strong>Background: </strong>Meckel Diverticulum [MD), a common congenital anomaly of the gastrointestinal tract, poses a dilemma when incidentally encountered during surgery. Despite historical descriptions and known complications of symptomatic MD, the decision to resect an incidental MD (IMD) lacks clear guidelines. This study aims to assess whether resecting IMDs is justified by synthesizing evidence from studies published between 2000 and 2023. Factors influencing this decision, such as demographic risks, surgical advancements and complications, are systematically examined.</p><p><strong>Methods and material: </strong>Following the PRISMA 2020 guidelines, this review incorporates 42 eligible studies with data on outcomes of asymptomatic MD management. Studies, both favoring and opposing resection, were analyzed.</p><p><strong>Results: </strong>Considering complications, malignancy potential, and operative safety, the risk-benefit analysis presents a nuanced picture. Some authors propose conditional resection based on specific criteria, emphasizing patient-specific factors. Of 2934 cases analyzed for short- and long-term complications, the morbidity rate was 5.69%. Of 571 cases where mortality data were available, all 5 fatalities were attributed to the primary disease rather than IMD resection.</p><p><strong>Conclusion: </strong>The sporadic, unpredictable presentation of IMD and the variability of both the primary disease and the patient make formulation of definitive guidelines challenging. The non-uniformity of complications reporting underscores the need for standardized categorization. While the balance of evidence leans towards resection of IMDs, this study acknowledges the individualized nature of this decision. Increased safety in surgery and anesthesia, along with better understanding and management of complications favor a judicious preference for resection, while taking into account patient characteristics and the primary disease.</p>","PeriodicalId":10208,"journal":{"name":"Clinical and Experimental Gastroenterology","volume":null,"pages":null},"PeriodicalIF":2.4,"publicationDate":"2024-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11088382/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140911363","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Vedolizumab Safety During Pregnancy and Lactation in a Patient with Ulcerative Colitis: A Case Report 溃疡性结肠炎患者妊娠期和哺乳期使用维多珠单抗的安全性:病例报告
IF 2.4
Clinical and Experimental Gastroenterology Pub Date : 2024-05-01 DOI: 10.2147/CEG.S457256
Fernanda Patrícia Pinto, Renata Dutra, Livia Almeida, Marcela Craveiro, J. Baima, Rogerio Saad-Hossne, L. Sassaki
{"title":"Vedolizumab Safety During Pregnancy and Lactation in a Patient with Ulcerative Colitis: A Case Report","authors":"Fernanda Patrícia Pinto, Renata Dutra, Livia Almeida, Marcela Craveiro, J. Baima, Rogerio Saad-Hossne, L. Sassaki","doi":"10.2147/CEG.S457256","DOIUrl":"https://doi.org/10.2147/CEG.S457256","url":null,"abstract":"Background Inflammatory bowel disease (IBD) affects young adults of reproductive age, and questions related to pregnancy and breastfeeding are common in clinical practice. Most medications used to treat IBD are considered safe during pregnancy, except methotrexate and small molecules such as tofacitinib. Despite few studies regarding vedolizumab (VDZ) safety, it appears to be safe during pregnancy. Therefore, this study aimed to report the management of ulcerative colitis in pregnant patient refractory to anti-tumor necrosis factor (TNF) agents using VDZ. Case Report A female, 38 years old, with ulcerative colitis was refractory to conventional treatment with mesalazine, sulfasalazine, and azathioprine. She was hospitalized at six weeks of gestation with severe acute colitis requiring the use of infliximab (IFX) to induce remission. She had a spontaneous abortion at nine weeks of gestation after the second dose of IFX. Since there was no endoscopic improvement after six months of IFX treatment, VDZ treatment was initiated. During the VDZ infusion period, the patient discovered that she was pregnant with twins, leading to the discussion of the risks and benefits of continuing the VDZ. The patient presented with disease clinical remission with the use of VDZ, and the babies were born at 34 weeks of gestation without complications. Breastfeeding was also performed without complications. Conclusion Continued VDZ medication is safe during pregnancy and breastfeeding, with adverse events similar to anti-TNF therapy.","PeriodicalId":10208,"journal":{"name":"Clinical and Experimental Gastroenterology","volume":null,"pages":null},"PeriodicalIF":2.4,"publicationDate":"2024-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141131879","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Acute Necrotizing Pancreatitis Complicated with Paroxysmal Nocturnal Haemoglobinuria: A Case Report. 急性坏死性胰腺炎并发阵发性夜间血红蛋白尿:病例报告。
IF 2.4
Clinical and Experimental Gastroenterology Pub Date : 2024-04-29 eCollection Date: 2024-01-01 DOI: 10.2147/CEG.S449594
Mengbo Xiao, Ying Di, Yu An, Yunfeng Cui
{"title":"Acute Necrotizing Pancreatitis Complicated with Paroxysmal Nocturnal Haemoglobinuria: A Case Report.","authors":"Mengbo Xiao, Ying Di, Yu An, Yunfeng Cui","doi":"10.2147/CEG.S449594","DOIUrl":"https://doi.org/10.2147/CEG.S449594","url":null,"abstract":"<p><p>This report presents a unique case of acute necrotizing pancreatitis(ANP) concomitant with paroxysmal nocturnal hemoglobinuria(PNH), a combination that has not been documented in existing literature. The impact of PNH on ANP and its treatment remains uncertain due to the lack of consensus. The case described herein involves a patient who exhibited both ANP and PNH, subsequently experiencing splanchnic vein thrombosis (SVT), resulting in substantial intra-abdominal and gastrointestinal hemorrhaging. We attempted to analyze the role of PNH in the formation of SVT in ANP and propose some new insights and hypotheses for the treatment of such patients.</p>","PeriodicalId":10208,"journal":{"name":"Clinical and Experimental Gastroenterology","volume":null,"pages":null},"PeriodicalIF":2.4,"publicationDate":"2024-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11067917/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140854067","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Jejunal Ectopic Pancreatic Tissue Rest as Lead Point in Patients with Intussusception: A Rare Case Report and Review of Literature. 作为肠套叠患者导引点的空肠异位胰腺组织息肉:罕见病例报告和文献综述。
IF 2.4
Clinical and Experimental Gastroenterology Pub Date : 2024-04-29 eCollection Date: 2024-01-01 DOI: 10.2147/CEG.S425986
Worku Mekonnen Sefefe, Destaw Biadgie Tesfaw, Andualem Dagne Tebikew, Assefa Sisay Ayenew, Bereket Amare Dencha, Temesgen Agegnehu Abebe
{"title":"Jejunal Ectopic Pancreatic Tissue Rest as Lead Point in Patients with Intussusception: A Rare Case Report and Review of Literature.","authors":"Worku Mekonnen Sefefe, Destaw Biadgie Tesfaw, Andualem Dagne Tebikew, Assefa Sisay Ayenew, Bereket Amare Dencha, Temesgen Agegnehu Abebe","doi":"10.2147/CEG.S425986","DOIUrl":"https://doi.org/10.2147/CEG.S425986","url":null,"abstract":"<p><strong>Background: </strong>Ectopic pancreas (EP), characterized by pancreatic tissue outside its usual location, poses diagnostic challenges due to its asymptomatic nature in most cases. Gastric lesions are often symptomatic, causing epigastric pain or gastric outlet obstruction. Rarely, jejunal lesions can lead to intestinal obstruction or intussusception. The elusive preoperative diagnosis lacks specific biochemical markers, relying on intraoperative biopsy and histopathology as gold standards.</p><p><strong>Case presentation: </strong>We present a unique case of a 37-year-old female with 12-hour crampy abdominal pain, bilious vomiting, blood-mixed diarrhea, abdominal distension, and obstructive symptoms. Imaging revealed jejunojejunal intussusception with a jejunal mass as the lead point. Intraoperatively, also identified jejunal mass as lead point. Resection of mass and end-to-end jejunojejunal anastomosis were performed, resulting in a successful outcome. Histopathological examination identified a type I ectopic pancreas within the muscularis propria. Twelve months postoperatively, the patient exhibited no stricture or recurrence.</p><p><strong>Conclusion: </strong>Ectopic pancreas, with varied symptoms, poses diagnostic hurdles. Despite the diagnostic challenges, surgical excision remains the optimal treatment for symptomatic cases. This report contributes to the limited literature on ectopic pancreas, emphasizing the importance of considering this entity in the differential diagnosis of gastrointestinal pathology.</p>","PeriodicalId":10208,"journal":{"name":"Clinical and Experimental Gastroenterology","volume":null,"pages":null},"PeriodicalIF":2.4,"publicationDate":"2024-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11067941/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140857775","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A Systematic Review: Fecal Bacterial Profile in Patients with Irritable Bowel Syndrome Analyzed with the GA-Map Dysbiosis Test Based on the 16S rRNA Gene of Bacterial Species or Groups. 系统性综述:基于细菌物种或菌群的 16S rRNA 基因的 GA-Map 菌群失调测试分析肠易激综合征患者的粪便细菌谱。
IF 2.4
Clinical and Experimental Gastroenterology Pub Date : 2024-04-17 eCollection Date: 2024-01-01 DOI: 10.2147/CEG.S451675
Erica Sande Teige, Urd Sortvik, Gülen Arslan Lied
{"title":"A Systematic Review: Fecal Bacterial Profile in Patients with Irritable Bowel Syndrome Analyzed with the GA-Map Dysbiosis Test Based on the 16S rRNA Gene of Bacterial Species or Groups.","authors":"Erica Sande Teige, Urd Sortvik, Gülen Arslan Lied","doi":"10.2147/CEG.S451675","DOIUrl":"https://doi.org/10.2147/CEG.S451675","url":null,"abstract":"<p><strong>Purpose: </strong>The diagnosis of irritable bowel syndrome (IBS) is based on symptom-based criteria due to lack of reliable disease-specific biomarkers. Gut microbiota is perturbed in IBS and when comparing different methods used to analyze gut microbiota, the results might be obscured. Therefore, in this systematic review we aimed to investigate the profile of fecal bacterial markers and dysbiosis index (DI) in patients with IBS and IBS subgroups compared to healthy controls (HCs) conducted by the same method (GA-map Dysbiosis Test based on16S rRNA sequencing).</p><p><strong>Material and method: </strong>We searched PubMed, EMBASE (Ovid) and Cochrane Library for case-control studies comparing fecal gut microbiota analyzed with the GA-map<sup>®</sup> Dysbiosis Test (Oslo, Norway) in patients with IBS and HCs. Our outcomes were the difference in fecal bacterial markers and DI in patients with IBS and IBS subgroups compared to HCs.</p><p><strong>Results: </strong>The search identified 28 citations; five articles were included. Most studies evaluated fecal bacterial markers and DI in patients with diarrhea-predominant IBS (IBS-D). Results of fecal bacteria profile in IBS and IBS subgroups compared to HCs are inconsistent, however, two studies showed increased levels of <i>Ruminococcus gnavus</i> in IBS-D compared to HCs and results of DI indicated IBS and IBS subgroups (especially IBS-D) having higher DI compared to HCs.</p><p><strong>Conclusion: </strong>This systematic review revealed inconsistent findings in respect to differences in bacterial markers between IBS and IBS subgroups with HCs in studies using the GA-map Dysbiosis Test based on 16S rRNA sequencing. However, the test is quite novel, and few studies have used the method so far. More research comparing fecal microbiota profile differences in IBS and IBS subgroups compared to HCs utilizing the same method of analysis is needed to give us further insight into the gut bacteria profile in IBS and the clinical consequences of intestinal dysbiosis.</p>","PeriodicalId":10208,"journal":{"name":"Clinical and Experimental Gastroenterology","volume":null,"pages":null},"PeriodicalIF":2.4,"publicationDate":"2024-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11032674/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140854042","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Rectovaginal Fistulas Not Involving the Rectovaginal Septum Should Be Treated Like Anal Fistulas: A New Concept and Proposal for a Reclassification of Rectovaginal Fistulas 不涉及直肠阴道隔膜的直肠阴道瘘应像肛门瘘一样治疗:直肠阴道瘘的新概念和重新分类建议
IF 2.4
Clinical and Experimental Gastroenterology Pub Date : 2024-04-01 DOI: 10.2147/CEG.S456855
P. Garg, Laxmikant Ladukar, Vipul D Yagnik, Kaushik Bhattacharya, Gurleen Kaur
{"title":"Rectovaginal Fistulas Not Involving the Rectovaginal Septum Should Be Treated Like Anal Fistulas: A New Concept and Proposal for a Reclassification of Rectovaginal Fistulas","authors":"P. Garg, Laxmikant Ladukar, Vipul D Yagnik, Kaushik Bhattacharya, Gurleen Kaur","doi":"10.2147/CEG.S456855","DOIUrl":"https://doi.org/10.2147/CEG.S456855","url":null,"abstract":"Background Many rectovaginal fistulas(RVF), especially low RVF, do not involve/penetrate the RV-septum, but due to lack of proper nomenclature, such fistulas are also managed like RVF (undertaking repair of RV-septum) and inadvertently lead to the formation of a high RVF (involving RV-septum) in many cases. Therefore, REctovaginal Fistulas, Not Involving the Rectovaginal Septum, should be Treated like Anal fistulas(RENISTA) to prevent any risk of injury to the RV septum. This concept(RENISTA) was tested in this study. Methods RVFs not involving RV-septum were managed like anal fistulas, and the RV-septum was not cut/incised. MRI, objective incontinence scoring, and anal manometry were done preoperatively and postoperatively. High RVF (involving RV-septum) were excluded. Results Twenty-seven patients with low RVF (not involving RV-septum) were operated like anal fistula[age:35.2±9.2 years, median follow-up-15 months (3–36 months)]. 19/27 were low fistula[<1/3 external anal sphincter(EAS) involved] and fistulotomy was performed, whereas 8/27 were high fistula (>1/3 EAS involved) and underwent a sphincter-sparing procedure. Three patients were excluded. The fistula healed well in 22/24 (91.7%) patients and did not heal in 2/24 (8.3%). The healing was confirmed on MRI, and there was no significant change in mean incontinence scores and anal pressures on tonometry. RV-septum injury did not occur in any patient. Conclusions RVF not involving RV-septum were managed like anal fistulas with a high cure rate and no significant change in continence. RV-septum injury or formation of RVF with septum involvement did not occur in any patient. The RENISTA concept was validated in the present study. A new classification was developed to prevent any inadvertent injury to the RV-septum.","PeriodicalId":10208,"journal":{"name":"Clinical and Experimental Gastroenterology","volume":null,"pages":null},"PeriodicalIF":2.4,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140789477","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Second-Line Treatment of Pancreatic Adenocarcinoma: Shedding Light on New Opportunities and Key Talking Points from Clinical Trials 胰腺腺癌的二线治疗:临床试验带来的新机遇和关键要点
IF 2.4
Clinical and Experimental Gastroenterology Pub Date : 2024-04-01 DOI: 10.2147/CEG.S390655
Robin Imperial, Osama Mosalem, Umair Majeed, Nguyen H Tran, M. Borad, Hani Babiker
{"title":"Second-Line Treatment of Pancreatic Adenocarcinoma: Shedding Light on New Opportunities and Key Talking Points from Clinical Trials","authors":"Robin Imperial, Osama Mosalem, Umair Majeed, Nguyen H Tran, M. Borad, Hani Babiker","doi":"10.2147/CEG.S390655","DOIUrl":"https://doi.org/10.2147/CEG.S390655","url":null,"abstract":"Abstract Despite improvements in overall cancer mortality, deaths related to pancreatic cancer continue to rise. Following first-line treatment, second-line options are significantly limited. Classically, first-line treatment consisted of either gemcitabine or 5-fluorouracil based systemic chemotherapy. Upon progression of disease or recurrence, subsequent second-line treatment is still gemcitabine or 5-fluorouracil based chemotherapy, depending on what was used in the first line and the timing of progression or recurrence. A better understanding of the molecular underpinnings of pancreatic adenocarcinoma (PDAC) has led to new treatment strategies including specifically targeting the desmoplastic stroma, cytokine signaling and actionable mutations. Furthermore, efforts are also directed to enhance the immunogenicity profile of PDAC’s well-established immunologically “cold” tumor microenvironment. More recently, the outstanding response rates of chimeric antigen receptor T (CAR-T) cells in hematologic malignancies, have led to clinical trials to evaluate the treatment modality in PDAC. In this review, we summarize recently presented clinical trials for metastatic pancreatic adenocarcinoma with novel treatment approaches in the second line and beyond.","PeriodicalId":10208,"journal":{"name":"Clinical and Experimental Gastroenterology","volume":null,"pages":null},"PeriodicalIF":2.4,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140760757","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
An Overview of the Effects of Tenapanor on Visceral Hypersensitivity in the Treatment of Irritable Bowel Syndrome with Constipation 概述特纳潘诺在治疗肠易激综合征伴便秘时对内脏超敏反应的影响
IF 2.4
Clinical and Experimental Gastroenterology Pub Date : 2024-04-01 DOI: 10.2147/CEG.S454526
Prashant Singh, Gregory Sayuk, David P Rosenbaum, Susan Edelstein, Kenji Kozuka, Lin Chang
{"title":"An Overview of the Effects of Tenapanor on Visceral Hypersensitivity in the Treatment of Irritable Bowel Syndrome with Constipation","authors":"Prashant Singh, Gregory Sayuk, David P Rosenbaum, Susan Edelstein, Kenji Kozuka, Lin Chang","doi":"10.2147/CEG.S454526","DOIUrl":"https://doi.org/10.2147/CEG.S454526","url":null,"abstract":"Background Patients with irritable bowel syndrome with constipation (IBS-C) experience persistent abdominal pain, a common symptom leading to greater healthcare utilization and reports of treatment non-response. Clinically significant improvements in abdominal pain were observed in clinical trials of tenapanor, a first-in-class inhibitor of sodium/hydrogen exchanger isoform 3 (NHE3), for the treatment of IBS-C in adults. Aim This narrative review reports the current knowledge about visceral hypersensitivity as a mechanism for abdominal pain in patients with IBS-C and explores the published evidence for hypothesized mechanisms by which tenapanor may reduce visceral hypersensitivity leading to the observed clinical response of decreased abdominal pain. Findings Abdominal pain is experienced through activation and signaling of nociceptive dorsal root ganglia that innervate the gut. These sensory afferent neurons may become hypersensitized through signaling of transient receptor potential cation channel subfamily V member 1 (TRPV1), resulting in reduced action potential thresholds. TRPV1 signaling is also a key component of the proinflammatory cascade involving mast cell responses to macromolecule exposure following permeation through the intestinal epithelium. Indirect evidence of this pathway is supported by observations of higher pain in association with increased intestinal permeability in patients with IBS. Tenapanor reduces intestinal sodium absorption, leading to increased water retention in the intestinal lumen, thereby improving gastrointestinal motility. In animal models of visceral hypersensitivity, tenapanor normalized visceromotor responses and normalized TRPV1-mediated nociceptive signaling. Conclusion By improving gastrointestinal motility, decreasing intestinal permeability and inflammation, and normalizing nociception through decreased TRPV1 signaling, tenapanor may reduce visceral hypersensitivity, leading to less abdominal pain in patients with IBS-C. Therapies that have demonstrated effects on visceral hypersensitivity may be the future direction for meaningful abdominal pain relief for patients with IBS-C.","PeriodicalId":10208,"journal":{"name":"Clinical and Experimental Gastroenterology","volume":null,"pages":null},"PeriodicalIF":2.4,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140773440","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Optimal Management of Refractory Crohn's Disease: Current Landscape and Future Direction. 难治性克罗恩病的优化治疗:当前形势与未来方向。
IF 2.4
Clinical and Experimental Gastroenterology Pub Date : 2024-03-26 eCollection Date: 2024-01-01 DOI: 10.2147/CEG.S359376
Kate E Lee, Violet Y Tu, Adam S Faye
{"title":"Optimal Management of Refractory Crohn's Disease: Current Landscape and Future Direction.","authors":"Kate E Lee, Violet Y Tu, Adam S Faye","doi":"10.2147/CEG.S359376","DOIUrl":"10.2147/CEG.S359376","url":null,"abstract":"<p><p>Refractory Crohn's disease, defined as ongoing inflammation despite the trial of multiple advanced therapies, impacts a number of individuals with Crohn's disease, and leads to significant burden in quality of life and cost. Interventions such as early implementation of advanced therapies, optimization of current therapies prior to switching to an alternative, as well as understanding the overlapping pathophysiology between immune-mediated disorders, however, can help shift the current landscape and reduce the number of patients with refractory disease. As such, in this review we summarize the key takeaways of the latest research in the management of moderate-to-severe Crohn's disease, focusing on maximization of our currently available medications, while also exploring topics such as combination advanced therapies. We also describe evidence for emerging and alternative therapeutic modalities, including fecal microbiota transplant, exclusive enteral feeding, hyperbaric oxygen, stem cell therapy, bone marrow transplant, and posaconazole, with a focus on both the potential impact and specific indications for each.</p>","PeriodicalId":10208,"journal":{"name":"Clinical and Experimental Gastroenterology","volume":null,"pages":null},"PeriodicalIF":2.4,"publicationDate":"2024-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10981422/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140334893","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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